Some months ago, we developed 3 new iot products based on G80 processor.
We had no problems with prototypes, and with minor changes we arranged a small production which was also successful.
Now we arranged a larger production (200 pieces), and we can´t deploy the firmware to 80 of them (40% aprox).
The weird part is that we can upload Config.ghi and Firmware.ghi smoothly, but when we try to deploy hex file via FezConfig 40% of them fails (Failure: Device is not connected or not Responding).
We can even re-enter in “GHI Bootloader Interface” mode, and upload ghi files without problems, but the failure rate in deploying hex files is too high.
We have tried this in 2 PCs, Windows 7 and Windows 10, but results are the same.
Have somebody experienced this issue before?
Thanks in advance for your help.